bug/nest-asyncio conflict with uvloop

[haoshan98]

Describe the bug
The nest-asyncio used by split_pdf_hook.py triggered the error. The conflict occurs when trying to use nest-asyncio together with uvloop custom event loop.

E RuntimeError: Endpoint http://localhost:6969/api/v1/gen_tables/knowledge/upload_file returned 500 error: {"object":"error","error":"unexpected_error","message":"Opss sorry we ran into an unexpected error. Please try again later.","detail":"Can't patch loop of type <class 'uvloop.Loop'>","request_id":"01906e81-ff60-7966-9f7b-cf3798aecb94","exception":"ValueError"}

[awalker4]

Hi @haoshan98, the linked PR will fix this error. Unfortunately, the current splitting implementation will not work with uvloop, so here we can fallback to not splitting pdfs. Keep an eye on #135 for a full overhaul of our asyncio code.

[awalker4]

This error is fixed in 0.25.2